Easy packing deep container

ABSTRACT

An easy packing deep container is made from a cut and scored blank of paperboard or the like and comprises opposed pairs of main panels connected along lines of fold to define a tube, together with closure flaps extending from one end of the main panel and foldable to position to define an end closure for the tube. Second closure flaps extending from the opposite edges of the main panel are foldably connected thereto, one of the second closure panels being slit midway thereof perpendicular to the line of fold with its adjacent main panel to define a pair of minor closure flaps. The slit extends into the same main panel for a predetermined distance, and a score line extends from each side of the slit in such main panel to a corner of the panel to define a pair of triangular shaped subpanels, which together with the minor closure flaps are foldable to position to provide easy loading of the tube from the open side thereof. The triangular shaped subpanels are foldable back into the plane of such panel to complete the loading of the tube, and the minor flaps are thereafter foldable into overlapping and secured relationship with the second closure flaps after completing of the loading of the tube.

United States Patent m McCloud i [451 Aug. 6, 1974 EASY PACKING DEEP CONTAINER [75] Inventor: Robert D. McCloud, Burlington,

[73] Assignee: Container Corporation of America,

Chicago, Ill.

22 Filed: Aug. 23, 1971 [21] Appl.No.: 173,795

[52] US. Cl. 229/37 R, 229/l6 R, 229/17 R [51] Int. Cl B65d 5/16 [58] Field of Search 229/6, 17, 23 R, 6 R, 17 R,

229/7 R, 16 R, 37 R; 206/44 R FOREIGN PATENTS OR APPLICATIONS 5/1937 Netherlands 229/17 Primary Examiner-Donald F. Norton Attorney, Agent, or F (rm-Carpenter, Ostis & Lind- ABSTRACT An easy packing deep container is made from a cut and scored blank of paperboard or the like and comprises opposed pairs of main panels connected along lines of fold to define a tube, together with closure flaps extending from one end of the main panel and foldable to position to define an end closure for the tube. Second closure flaps extending from the opposite edges of the main panel are foldably connected thereto, one of the second closure panels being slit midway thereof perpendicular to the line of fold with its adjacent main panel to define a pair of minor closure flaps. The slit extends into the same main panel for a predetermined distance, and a score line extends from each side of the slit in such main panel to a corner of the panel to define a pair of triangular shaped subpanels, which together with the minor closure flaps are foldable to position to provide easy loading of the tube from the open side thereof. The triangular shaped subpanels are foldable back into the plane of such panel to complete the loading of the tube, and

the minor flaps are thereafter foldable into overlapping and secured relationship with the second closure flaps after completing of the loading of the tube.

3 Claims, 3 Drawing Figures HUM /2| l EASY PACKING DEEP CONTAINER BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates generally to containers adapted to ship bulky material having low density, and which can be shipped in large size containers except for the fact that the loading thereof is not easily accomplished. According to the invention, deep loading is accomplished by providing an opening in one of the main panels of the container, such opening being defined by a slit line in a main panel thereof and diagonally extending score lines to define triangular shaped subpanels foldable out of the plane of the main panel during the loading, such subpanels being thereafter foldable into position together with minor closure flaps extending therefrom. The minor closure flaps cooperate with other closure flaps to complete the closing of the container.

2. The Prior Art The prior art is best exemplified in the following US. Pat. Nos. developed in a search: Belsinger, 2,512,539, June 20, 1950, 229/6; Belsinger 2,635,802, Apr. 21, 1953, 229/16; Belsinger 2,648,480, Aug. 11, 1953, 22 9/7;

The present construction represents an advantage over the prior art since it materially improves the stacking strength of the container. While prior art discloses containers having vertical and horizontal slits in each container, the present construction has only a single vertical slit thus reducing the weakening affect on the container caused by a plurality of slits.

SUMMARY OF THE INVENTION The invention is directed to that type of container which is of a depth that the bottom is out of reach of a normal-sized packer. The container is so formed and arranged that the packer has ready access to the inner bottom for the initial loading thereof. Such access is provided by providing a reclosable opening in one of the main panels of the container.

THE DRAWING FIG. 1 is an isometric view of a container constructed in accordance with the teachings of the present invention, the container being shown in a position for final closing of closure flaps thereof;

FIG. 2 is a plan view of a cut and scored blank for forming the container of FIG. I; and

FIG. 3 is a view somewhat similar to FIG. 1, but showing the condition of the container for the initial loading thereof by a packer.

SPECIFICATION The improved container according to the present invention is referred to by the reference numeral 10, and is formed from a cut and scored blank A. Container 10 comprises opposed pairs of main panels 11, ll l2, 12, these being connected seriatim along fold lines 13. A glue flap 14 is connected along afold line 16 to one of the panels 12 for making a conventional manufacturers joint with the leftmost panelll in a manner well known in the art to define a tube or container body.

Closure flaps 17 are foldably connected to the main panels 11 and 12 along a common fold line 18, and the flaps 17 are foldable into position to define a bottom closure for the tube previously described.

Second closureflaps extend from opposite ends of the main panels 11 and 12 and are foldably connected thereto along a common fold line 21.

One of the second closure flaps 19 is slit transversely midway thereof along a cut line 24 which is perpendicular to the fold line 21 connecting said flap to its connected main panel. The slit 24 thus defines a pair of side-by-side minor closure flaps 22 and 23. Slit 24 also extends into the adjacent main panel 12 a predetermined distance.

A score line 26 is formed in the same main panel 12 and extends from slit 24 to each side thereof to a corner of such main panel. The score lines 26 and slit 24 thereby define a pair of triangular shaped subpanels 27, 27 disposed one each side of slit 24.

The triangular shaped panels 27, 27, together with their connected minor closure flaps 22 and 23, are foldable along the score lines 26 to provide ease of loading of the tube or container body from the open side thereof, as seen particularly in FIG. 3. After the loading of the container 10, the triangular shaped subpanels 27, 27 are folded back into the plane of their connected main panel 12 and the loading of the container body is completed. Thereafter, the minor closure flaps 22 and 23 are folded into side-by-side position, seen in FIG. 1, and the remaining closure flaps 19 are folded into overlapping and secured relationship as by a suitable adhesive.

I claim:

I. An easy packing deep container made from a cut I and scored blank of paperboard or the like comprising:

a. opposed pairs of main panels connected along lines of fold to define a container body;

b. closure flaps extending from one end of said main panels and foldably connected thereto:

i. said closure flaps being folded with respect to said main panels into overlapping and secured relationship to define a bottom closure for said container body;

c. second closure flaps extending from opposite ends of said main panels and foldably connected thereto;

i. one of said second closure flaps and its connected main panel being slit midway thereof along a line perpendicular to the fold line connecting said one flap to its connected main panel to define a pair of minor closure flaps;

ii. said slit line extending into said connected main panel for a predetermined distance;

d. a score line extending in said connected main panel from each side of said slit line to a corner of said connected main panel to define a pair of triangular shaped subpanels in said one connected main panel;

e. said triangular shaped subpanels together with said minor closure flaps being foldable along saidscore lines to provide ease of loading of said tube from the open side thereof;

f. said triangular shaped subpanels being foldable back into the plane of said connected main panel to complete the loading of said container body;

g. said minor flaps and the remainder of said second closure flaps being foldable into overlapping and secured relationship after completion of loading of said container body.

2. An easy packing deep container made from a cut and scored blank of paperboard or the like comprising:

a. opposed pairs of main panels connected along lines of fold to define a container body;

b. closure flaps extending from one end of said main panels and foldably connected thereto;

i. said closure flaps being folded with respect to said main panels into overlapping and secured relationship to define a bottom closure for said container body;

c. second closure flaps extending from opposite ends of said main panels and foldably connected shaped subpanels;

e. said triangular shaped subpanels together with said second closure flap portions being foldable along said score lines to provide ease of loading of said tube from the open side thereof;

f. said triangular shaped subpanels being foldable back into the plane of said connected main panel to complete the loading of said container body;

g. said second closure flap portions and the remainder of said second closure flaps being foldable into overlapping and secured relationship after completion of loading of said container body.

3. In a large, heavy-duty, paperboard shipping case constructed from a one-piece standard slotted blank having closure flaps at the top and bottom of each of the four walls, the improvement which comprises a continuous slit dividing the top front closure flap into two equal portions and extending down the front wall to a point equidistant from the top and sides of the front wall and creases extending from the end of said slit to each of the upper corners of the front wall for folding portions of the wall aside to form a V-shaped access opening into the shipping case.

. h STA ES PATENT OFFICE CERTIFI-CATE- OF CORRECTION I Patent No. 3,827,622 A Dated August 6, 1974 Robert McLoud Inventor(s) It is certified that error appears in the above-identified patent and that said Letters Patent are 'hereby corrected as shown below:

The inventor 's name" should read Robert D .jMcLoud'--.

signed gri li e id Ems 19th (s9 5: Norze rnber" 1974.

(SEAL) Attest:

McCOY M. GIBSON JR. c. MARSHALL DANN Atte'sting Officer Commissioner of Patents FORM Po 1oso (10-69) uscow-oc wan-Pu u.s.covnzm4rut rainmuc on-ncs: 86mg) 

1. An easy packing deep container made from a cut and scored blank of paperboard or the like comprising: a. opposed pairs of main panels connected along lines of fold to define a container body; b. closure flaps extending from one end of said main panels and foldably connected thereto: i. said closure flaps being folded with respect to said main panels into overlapping and secured relationship to define a bottom closure for said container body; c. second closure flaps extending from opposite ends of said main panels and foldably connected thereto; i. one of said second closure flaps and its connected main panel being slit midway thereof along a line perpendicular to the fold line connecting said one flap to its connected main panel to define a pair of minor closure flaps; ii. said slit line extending into said connected main panel for a predetermined distance; d. a score line extending in said connected main panel from each side of said slit line to a corner of said connected main panel to define a pair of triangular shaped subpanels in said one connected main panel; e. said triangular shaped subpanels together with said minor closure flaps being foldable along said score lines to provide ease of loading of said tube from the open side thereof; f. said triangular shaped subpanels being foldable back into the plane of said connected main panel to complete the loading of said container body; g. said minor flaps and the remainder of said second closure flaps being foldable into overlapping and secured relationship after completion of loading of said container body.
 2. An easy packing deeP container made from a cut and scored blank of paperboard or the like comprising: a. opposed pairs of main panels connected along lines of fold to define a container body; b. closure flaps extending from one end of said main panels and foldably connected thereto; i. said closure flaps being folded with respect to said main panels into overlapping and secured relationship to define a bottom closure for said container body; c. second closure flaps extending from opposite ends of said main panels and foldably connected thereto; i. one of said second closure flaps and its connected main panel being defined by second closure flap portions and main panel portions extending to each side of a line perpendicular to the fold line connecting said second closure flap to its connected main panel; d. a score line extending in said main panel portion from each side of said line to a corner of said connected main panel to define a pair of triangular shaped subpanels; e. said triangular shaped subpanels together with said second closure flap portions being foldable along said score lines to provide ease of loading of said tube from the open side thereof; f. said triangular shaped subpanels being foldable back into the plane of said connected main panel to complete the loading of said container body; g. said second closure flap portions and the remainder of said second closure flaps being foldable into overlapping and secured relationship after completion of loading of said container body.
 3. In a large, heavy-duty, paperboard shipping case constructed from a one-piece standard slotted blank having closure flaps at the top and bottom of each of the four walls, the improvement which comprises a continuous slit dividing the top front closure flap into two equal portions and extending down the front wall to a point equidistant from the top and sides of the front wall and creases extending from the end of said slit to each of the upper corners of the front wall for folding portions of the wall aside to form a V-shaped access opening into the shipping case. 